Vulcanizing apparatus



Feb. 13, T1923. A. W. HERLING VULCANIZING APPARATUS Filed Feb. 2, 1922 Patented Feb.13, 1923, r 1,444,789

UNITED, STATES PATENT OFFICE.

ADOLF W. HERLING, OF CHICAGO, ILLINOIS.

VULOANIZING- APPARATUS.

Application filed February 2, 1922.. Serial No. 533,575.

To all whom it may concern: Wardly and upwardly from the side thereof Be it known that I, Anonr W. HERLING, supporting a steam box or curing plate 12, a citizen of the Republic of Poland, residand having a pipe 13 leading thereto from ing at Chicago, in the county of Cook and a boiler or other source of supply of heat. 56 State of Illinois, have invented certain new A bracket 14 is secured to the table, and and useful Improvements in Vulcanizing pivoted on the shaft '15 thereof is the press- Apparatus, of which the following is a speciing lever 16, said lever being retained therefication. on by a cotter, pin 17 or the like. The

This invention relates to improvements in upper end of the pressing lever has a socket 0 vulcanizing-devices of the type commonly 18 formed therein, adapted to receive the used for repairing the inner tubes of pneustem 19 of the pressure pad 20, said socket matic tires, portion preferably being split, as shown in The principal object of the invention is to Fig. 8, and having lugs 18 thereon carryprovide a pressing pad of such construction ing a screw 18", whereby the socket may be 65 that the pressure will be uniformly distribcontracted to engage tightly the stem 19.

uted over that portion of the tube or other The pressure pad 20 may be made circular article which is being repaired. 'or rectangular in shape, as shown in Figs.

Another object relates to the provision of 3 and 6, respectively. The circular pad (see means whereby th workman ma a tuat Figs. 3 and 4 and the second device of Fig. 20 and release the pressing means with hi 1) consists of a sheet metal or steel plate 21, foot, leaving both hands f e fo th ahaving an upstanding flange 21 and a hood nipulation of the article being repaired. 22 formed of alternate y of fabric and Other objects relate t feat es of rubber, suitably vulcanized, overlying said rangement and construction which will apflange andsecured hereon by a retaining 25 pear more fully hereinafter, taken in conband 23 having flanges 23, said flanges-carnection with the accompanying drawings, rying a bolt 24, or other tightening means, wherein- I whereby 'an air-tight connection can be Figure .1 is a front elevation of my vulmade between the flange 21 and the hOOd canizer showing'a battery of three vul an- 22. A valve 25 is secured in the plate 21, 3o izing devices, the int nn di t d i h whereby the pad maybe inflatedtoa desired ing provided with a circular and the others p r The lowerend of the lever 16 ex-- with a rectangular shaped sing ad; tends under the bench 10, as shown, and is d Fig. 2 is a, side elevation of a, single provided with screw-threaded holes adapted ev1ce; Fig. 3 is a plan view of a circular pressing h Ok 26 engages a spring 28, which is sead; cured at its other end to the table by a Fig. 4c is a, sectional iew of the same, hOOk 2s 01 other The tension 0f taken on th lin 3-3 of Fig, 3; the sprlng is such that the pad 20 will be Fig; 5 is a, plan iew of a, pad of reccarried away from the steam bOX 12 when 40 taggular shape. not in use. V

ig, 6 is a, sectional vi w, taken on the When desired, the tension of the spring line 5-5 of Fig. 5; 28 may be varied by adjusting the threaded Fig. 7 is a plan view of the pedal and hook 26, as will be clear. A spring 30, locking arrangement shown in Figs. 1. and which is heavier than the spring 28, is en- 45 2; and gaged at itsupper end by the adjustable Fig. 8 is a detail view of a socket. hook 27, and at its lower end is secured by Similar reference characters are used a hook 31, or other means, to a pedal 32 throughout the drawings to indicate like which is pivoted to a block 33, secured to elements, whereinthe floor of the shop. On the under side of 10c 50 10 is a table, bench, or other suitable supthe pedal are two depending lugs 34: and 35, port, having brackets 11 extending outeach having a hole therein adapted to reto receive threaded hooks 26 and 27. The 85 ceive and guide the latch bolt 36. A pin 36 extends laterally through the bolt, and between said pin and the lug 34 a spring 37 is retained,.said spring tending to force the bolt to the right, as viewed in Fig. 2.

The rear end of the'bolt 36 is pivoted to link 36", which in turn is pivoted tov the releasing pedal 38, which is pivotally secured by a. pin 39 to pedal 32 and is movable in. slot 40 provided therein. The outer end of the bolt is bevelled, and is adapted to engage a catch 41 secured to the floor when the pedal 32 is sufiiciently depressed.

In use my device' operates as follows;

The steam box or curing plate 12 being at the correct temperature and the pad 20 suitably inflated, the workman adjusts the tube or other'a'rtiicle to be vulcanized on the pad and depresses the pedal 32, which, through the medium of spring 30, pulls the rear end of the lever 16 downwardly against the action of the spring 28. The pad, carrying the tube to be repaired, is then forced against the steam box 12, and is retained thereagainst by. meansof the locking mechanism carried by the pedal; The pneumatic pad, as Willbe clear, effects a substantially uniform pressure against the steam box of the article being repaired, irrespective of irregularities therein. It will'be observed also that, due to the position of the steam box 12 with respect to the table 10, the tube will hang freely from the pad 20, thus rendering the adjustment of the tube more simple than in many present devices.

When the vulcanizing operation is complete the operator presses the releasing pedal 38, which retracts the bolt 36 from engagement with the catch 41, whereupon spring 28 will move the pad away from the steam box,

as will be obvious.

To adapt my device to a variety of repair work, I provide also pneumatic pads of rectangular shape, one of which is shown in Figs. 5 and 6, these pads being readily interchangeable with the pad previously described. In the rectangular form of pad I provide a plate 45, of the desired shape, carrying a valve 25, as in the circular form. A hood 46 is secured to the plate 45 by a frame 47 which extends around the plate, as shown, the edge of the hood material being tightly secured between said frameand said plate by means of rivets, screws, or other means.

Although I have shown and described certain forms of my invention for purposes of illustration, I do not wish to be restricted thereto unduly, except where limitations appear in the appended claims.

I claim 1. In a device of the class described, a lever, pressing means carried thereby, and foot operable means resiliently connected with V said lever and adapted to actuate the same.

2. In a device of the class described, a curing plate, a pneumatic pad adapted to press the article to be repaired against said plate, foot operable means adapted to secure said pad in pressing position, and means carried by said foot operable means for releasing the same. i 3. In a. device of the class described, a curing plate, a pneumatic pad adapted to press the article to be repaired against said plate, foot-operable means adapted to secure said pad in pressing position, and foot operable releasing means adapted to release said last named means.

4. In a device of the class described, a curing plate, a pneumaticpad adapted to press the article to be repaired against said plate, foot operable means adapted to secure said pad in pressing position, and foot operable releasing means carried by and adapted to release said securing means.

5. In a device of the class described, a cur-- ing plate, a pivoted lever, a pedal, a spring connecting said pedal with said lever, a pressing pad carried by said lever and adapted to contact with said plate upon the depression of said pedal.

6. In a device of the class described, a sup-' port, upwardly and laterally extendin arms secured thereto, a heating platecarrled by said arms, a lever, and a preming pad carried thereby and adapted to coact with said plate upo-n proper actuation of said lever.

In a device of the class described, a; curing plate, a lever, a pneumatic pad-carried thereby, a resilient means urging said pad away from said plate, a pedal, and a second resilient means transmitting motion from said pedal to said lever, Whereby'said pad is forced into-contact with said plate.

8. In a device of the class described, a le- Ver, a-pneumatic pad carried thereby, and foot operable means resiliently connected with said lever-and adapted to actuate the same.

9. In a device of the class described, a lever, a resilient pad carried thereby, foot operable means resiliently connected with said lever, and spring-actuated locking means carried by said other means.

10. In a device of the class described, a lever, pressing means carried thereby, foot operable means resiliently connected with said lever, locking means adapted to secure said foot operable means in depressed position, an. spring-resisted means adapted to release said locking means.

11. In a device of the class described, a curing plate, a lever, a pressing member car- 'ried thereby and movable into contact with hood secured-thereto adjacent the lateral" 14. A pneumatic pad omprisin a base, 1 edges thereof. a a flexiblehood, and a band secure to said 13. A 'neumatic pad comprising a-base, a 7 base andpressing said hood ad'acent its edge 10 flexible, hood, means for forming anlairinto air-tight contact With sai base. 5 tight connection between said base and hood, In testimony whereof, I have subscribed.. and a valve pennittingthe inflation of said my name. v ADOLF W. 'HERLINGn' pad. 

